Need help with Digimon World 2003 !!

Hello people, i have this problem where i got this emulator program called ePSXe 1.7.0 and i want to play digimon world 2003 (not DMW 3, i need the 2003 the european version i think) but i cant find any way to get my hands to that file, im talking about an ISO file, any suggestions?? If u got any ways to help me i would love to listen to ur propositions.

Some info that might help:


**Hardware**
CPU: Intel(R) Core I5 750 @ 2.67GHz (4 CPUs), ~2.8GHz
Graphics Card: ATI radeon HD 4800 series
RAM: 3587 MB
Operating System: Windows Vista (Premium Ed)


Emulator: ePSXe 1.7.0
What plugins you are using: those pete D3D or smthing ( im not rly sure about it since my brother downloaded it)
Have you tried other Roms/Images, of the same game: Lots of them.
And or if you have tried other emulators: Not really since i wouldnt know which one fits for the game im looking for.

Regards

here is the link to the game your after, iwhen you download it you will have a .7Z file follow this guide to help you with it

Thank you very much! It works now correctly, didnt have an idea about those ECm files and plus from this guide ive learned how to fix some more games that i couldnt play.

your more than welcome :) come back if there is any more issues